Specify callback function to execute before device object runs
Note: You cannot use the legacy interface on 64-bit MATLAB®. See About the Session-Based Interface to acquire and generate data on a 64-bit MATLAB.
A start event is generated immediately after the
is issued. This event executes the callback function specified for
When the callback function has finished executing,
automatically set to
On and the device object and
hardware device begin executing. Note that the device object is not
started if an error occurs while executing the callback function.
Start event information is stored in the
EventLog property. The
values are given below.
Data Field Value
The absolute time (as a
The acquired (AI) or output (AO) sample number when the event occurred.
AI, AO, common to all channels
Read-only when running
The default value is an empty string.